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<http://webisa.webdatacommons.org/prov/363819316>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/143473238> .
<http://webisa.webdatacommons.org/prov/375008694>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/143473238> .
<http://webisa.webdatacommons.org/143473238>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<patents.com> .
<http://webisa.webdatacommons.org/prov/95107695>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/143473238> .
<http://webisa.webdatacommons.org/143473238>	<http://www.w3.org/ns/prov#value>	"##STR00008## wherein R.sup.a, R.sup.b, R.sup.d and X are as hereinbefore defined, Z.sup.3 denotes a leaving group, for example a halogen atom such as a chlorine or bromine atom, or a sulphonyloxy group such as a methanesulphonyloxy or" .